4-(3-Thienyl)benzonitrile
4-(3-Thienyl)benzonitrile (CAS: 172507-33-4; C11H7NS) is a heterocyclic organic compound with a molecular weight of 185.24 g/mol. It serves as a valuable building block in chemical synthesis, particularly within the realm of organic electronic materials and pharmaceutical research. Its structure incorporates both a thiophene and a benzonitrile moiety, offering diverse reactivity for further functionalization.

Organic Synthesis Intermediate
This compound is utilized as a key intermediate in the synthesis of more complex organic molecules. Its thienyl and benzonitrile groups allow for various coupling and substitution reactions.
Materials Science Research
It can be employed in the development of novel organic electronic materials, such as organic semiconductors or components for optoelectronic devices, owing to its conjugated structure.
Pharmaceutical Building Block
The molecule's distinct structural features make it a useful precursor in the design and synthesis of potential pharmaceutical agents or drug candidates.
| Molecular weight | 185.24 |
|---|---|
| Empirical formula | C11H7NS |
| Assay | 97% |
| Melting point | 87-91 °C(lit.) |


Hazard statements
- H301Toxic if swallowed
- H315Causes skin irritation
- H318Causes serious eye damage
- H335May cause respiratory irritation
Precautionary statements
- P261Avoid breathing dust, fume, gas or vapours
- P280Wear protective gloves, clothing and eye/face protection
- P301IF SWALLOWED
- P305IF IN EYES
| Protective equipment | dust mask type N95 (US), Eyeshields, Faceshields, Gloves |
|---|---|
| Transport (UN / ADR) | UN 2811 6.1 / PGIII |
| Water hazard class (WGK, DE) | 3 |
| Hazard codes (EU) | Xn |
| Risk statements (R) | 22-37/38-41 |
| Safety statements (S) | 26-36/37/39 |
Hazard information is provided for guidance. Always consult the product Safety Data Sheet (SDS), available on request, before handling.
Documentation
Every batch ships with a Certificate of Analysis covering assay, identity and purity; the grade is confirmed against your enquiry. Safety Data Sheets and technical data sheets are available on request.
Supply & logistics
Samples for technical evaluation; bulk MOQ by grade and packaging. In-stock material ships in 7–10 working days, worldwide, with full export documentation.
What is 4-(3-Thienyl)benzonitrile used for?
+
4-(3-Thienyl)benzonitrile is primarily used as a building block in organic synthesis, with applications in materials science and pharmaceutical research.
What are the CAS number and formula for 4-(3-Thienyl)benzonitrile?
+
The CAS number is 172507-33-4, and the molecular formula is C11H7NS.
What grade and purity does Tech Serve Solutions supply?
+
Tech Serve Solutions supplies 4-(3-Thienyl)benzonitrile with an assay of 97%. This product is supplied for research and development purposes and is not represented as USP, EP, BP, or other pharmacopoeia grades.
How should 4-(3-Thienyl)benzonitrile be handled safely?
+
Handling requires caution due to hazards including acute toxicity (oral), skin irritation, serious eye damage, and respiratory irritation. Use a dust mask type N95 (US), safety eyeshields, face shields, and gloves. Avoid breathing dust. Ensure good ventilation.
Is 4-(3-Thienyl)benzonitrile shipped internationally?
+
Yes, Tech Serve Solutions is a global supplier and exporter of fine chemicals, including 4-(3-Thienyl)benzonitrile, and handles international shipments.
How can I request a sample or quote for 4-(3-Thienyl)benzonitrile?
+
To request a sample or a quotation, please contact our sales team through the website or by phone, providing your specific requirements and shipping details.
▶ Related products

1-(2-Fluorobenzyl)piperazine
C11H15FN2
Chemical Synthesis
1-(2-Fluorophenyl)biguanide hydrochloride
Chemical Synthesis

1-(2-Fluorophenyl)cyclopropanecarboxylic acid
C10H9FO2
Chemical Synthesis
1-(2-Fluorophenyl)piperazine
C10H13FN2
Chemical Synthesis
1-(2-Fluorophenyl)piperazine monohydrochloride
C10H13FN2 · HCl
Chemical Synthesis
1-(2-Furoyl)-1H-benzotriazole
C11H7N3O2
Chemical Synthesis
1-(2-Furoyl)piperazine
C9H12N2O2
Chemical Synthesis
1-(2-Hydroxy-5-methylphenyl)-3-phenyl-1,3-propanedione
Chemical Synthesis
▶ Explore more

3-Methyl-1,5-di-p-tolyl-1,4-pentazadiene
Chemical Synthesis

3-Methyl-1,5-pentanediol
Chemical Synthesis

3-Methyl-1-(2-methylphenyl)-1H-pyrazol-5-amine
C11H13N3
Chemical Synthesis
3-Methyl-1-(3′-sulfoamidophenyl)-5-pyrazolone
C10H11N3O3S
Chemical Synthesis